test: fixed a wrong test suite name
test: fixed a wrong test suite name

A test suite name is not existing in the integration test suites.
Replace the wrong name "TestRookClusterInstallation_SmokeTest" with "TestARookClusterInstallation_SmokeTest"

Signed-off-by: Hiroyuki Kaneko <bde89d3651093aa7c7fb08552ad22acf9e3b9f5d@redhat.com>

rook/rook,rook/nfs,rook/rook,rook/nfs,rook/nfs,rook/rook,rook/rook,rook/rook